Section-insulator.



Patented Feb. 8, 1910@ R. S. MCFEELY. SECTION INSULATOR. 'APPLIoATIoNFILEDMAM, 19o9.

ANDREW E. GRAHAM C0. PHOT 94eme.

UIT

SECTION-INSULATOR.

To all whom it may concern:

Be it known that I, ROBERT S. MOFEELY, a citizen of the United States,residing at Scalp Level, in the county of Cambria and vState ofPennsylvania, have invented certain new and useful Improvements inSection-Insulators, of which the following is a specification.

My invention relates to trolley line breakers or section insulators, andhas for its object to provide an improved device of this characterwherein the bar forming the trolley wheel contact may be readily removedand replaced without t-he manipula tion of fastening means.

In the accompanying drawing: Figure 1 is a perspective view of myimproved device. Fig. 2 is a vertical longitudinal section of the same.Fig. 3 is a detail per spective view of the trolley wheel bar thereof.

Similar numerals of reference denote corresponding parts in the severalviews.

In the said drawing the reference numeral 1 denotes the body of thedevice, which may be made of wood or other suitable insulating material.At each end said body 1 is provided with an end piece 2 bolted thereto,as shown, and formed of brass or other suit; able conducting material.Said end pieces have their extended ends slotted at 3 on their undersides to receive the ends of the line wire in lthe usual manner, saidslots terminating in substantially vertical apertures l into which theline wires are to be projected, and wherein they are retained by setscrews 5. Said end pieces are also provided with apertures 6 and setscrews 7 for receiving and retainingthe usual connecting wire bridgingthe body 1. The body 1 on its underside does not extend as far as theunder faces of end pieces 2, and one of said end pieces, say the lefthand one, is recessed at 8, while the other end piece is provided with aleaf spring 9, as shown. The ytrolley wheel bar 10 is provided at oneend with a tongue 11 and at its other end with a head 12 having adepression 13 therein. To position said bar 10 the tongue 11 thereof isfirst inserted in recess 8 in one end piece 2, and the head 12 thereofthen Specification of Letters Patent.

Application led May 4, 1909.

Patented Feb. 8, 1910. Serial No. 493,876.

depressed upwardly so that spring 9 will engage the depression `13 insaid head. When so positioned the bar 10 will be firmly retained inposition, and will form on its under surface a. continuation of the endpieces 2. A stud 14 may be provided on one side of said bar 10 wherebyit may be manipulated. Said bar 10 may be made of conducting material,such as copper or brass when it is desired to have a continuousconduction, and may be replaced by one made of wood or othernon-conducting material when it is desired to provide a circuit breaker.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is

1. A device of the character described, embodying a body, a trolleywheel bar, and spring means for holding said bar in position withrespect to said body.

2. A device of the character described, embodying a body of insulatingmaterial, end pieces of conducting material secured to said body, atrolley wheel bar, and spring means for holding said bar in engagementwith said end pieces.

3. A device of the character described, embodying a body of insulatingmaterial, end pieces of conducting material, and a trolley wheel barhaving a tongue at one end to engage a recess in one of said end pieces,and spring means at its other end to form a detachable spring engagementwith the other' end piece.

t. A device of the character described, embodying a body of insulatingmaterial end pieces of conducting material a trolley wheel bar having atongue at one end to engage a recess in one of said end pieces and adepression in its other end, and a spring in the other end piece adaptedto engage said depression and detachably re.- tain said bar in operativeposition.

In testimony whereof I aiiix my signature, in presence of two witnesses.

ROBERT S. MGFEELY.

lVitnesses:

JNO. B. ESTEL, JOHN THOMAS.

